供需

gōng xū supply and demand

平衡

píng héng balance; equilibrium

调查

diào chá investigation; inquiry; to investigate; to survey; survey; (opinion) poll; CL:項|项[xiang4],個|个[ge4]

统计

tǒng jì statistics; to count; to add up

分析

fēn xī to analyze; analysis; CL:個|个[ge4]

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